Factor Info

ID 163958
Size 266 digits / 881 bits
Status composite
Value 15666015272206550674789771053414830846309160226947009005597552115305983951235580631102675872007454380965845414287608291661005956443964977274766177231930598974602583197493909046103125374792795382181988865292842373434847343114704789630773257651762603722254676572889779

Factorizations

Primary (ID: 163529) 11977483948858405223691616891903180953084889 (proven prime)
(ID: 195624) 1307955438646169571464328959675250622292864516712184178977904427844573292991490015117447690400782421467349938452266727294554400745905634138019522934209736280136632150913378779797143171130852118947786961860013269389344604011 (composite)

Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.